HALLOWEEN
HALLOWEEN IS OBSERVED ON OCTOBER 31ST. IT IS THE EVE OF ALL SAINTS DAY, FORMERLY CALLED ALL HALLOWS OR HALLOWMASS. HALLOWEEN IS TRADITIONALLY ASSOCIATED IN SOME COUNTRIES WITH OLD CUSTOMS SUCH AS BONFIRES, MASQUERADING, AND TELLING OF GHOST STORES‑‑ALL OLD CELTIC PRACTICES THAT MARK THE BEGINNING OF WINTER.
THE HIGHEST TEMPERATURE EVER RECORDED IN ROCHESTER ON HALLOWEEN WAS IN 1971 WHEN PARTLY SUNNY SKIES WERE ACCOMPANIED BY A HIGH TEMPERATURE OF 80 DEGREES. THE COLDEST TEMPERATURE EVER RECORDED ON HALLOWEEN WAS A LOW OF 21 DEGREES IN 1988. NORMALLY, THE HIGH TEMPERATURE AVERAGES ABOUT 58 DEGREES WHILE THE LOW AVERAGES 38 DEGREES.
THERE IS ROUGHLY A 46 PERCENT CHANCE OF HAVING PRECIPITATION OF A TRACE OR MORE. IN 1993, RAIN THAT BEGAN DURING THE LATE MORNING HOURS DROPPED 0.90 INCHES ON ROCHESTER...THE MOST PRECIPITATION EVER RECORDED ON THIS DATE. THE SAME DAY THERE WAS 2.6 INCHES OF SNOW DROPPED ON ROCHESTER MAKING IT A RECORD. IT HAS SNOWED ON 4 OF THE PAST 67 HALLOWEEN DAYS.
HALLOWEEN OCTOBER 31 PERIOD OF RECORD: 70 YEARS (1941‑2011)
TEMPERATURE DATA
HIGHEST 80 DEGREES IN 1971
LOWEST 21 DEGREES IN 1988
LOWEST MAXIMUM 38 DEGREES IN 1993
HIGHEST MINIMUM 56 DEGREES IN 1974
AVERAGE HIGH TEMPERATURE 58.3 DEGREES
AVERAGE LOW TEMPERATURE 38.3 DEGREES
HIGH TEMPERATURE BY 10 DEGREE RANGES
30S 40S 50S 60S 70S 80S
1 12 25 25 6 1 ‑NUMBER OF OCCURRENCES
1% 17% 36% 36% 9% 1% ‑PROBABILITY OF HIGH TEMP IN THAT RANGE
PRECIPITATION DATA
NUMBER OF TIMES WITH MEASURABLE 20 OCCURRENCES OR 26%
NUMBER OF TIMES WITH A TRACE OR MORE 33 OCCURRENCES OR 46%
NUMBER OF TIMES WITH NO PRECIP 37 OCCURRENCES OR 53%
NUMBER OF TIMES WITH PRECIPITATION OF: 0.01 INCH OR MORE 20
0.50 INCH OR MORE 6
SNOWFALL: NUMBER OF TIMES WITH A TRACE OR MORE 4
NUMBER OF TIMES WITH OVER A TRACE 1
MAXIMUM PRECIPITATION: 0.90 INCHES IN 1993
MAXIMUM SNOWFALL: 2.6 INCHES IN 1993
HALLOWEEN
YEAR HI LO PRECIP REMARKS
1941 48 44 .03 CLOUDY
1942 66 52 .57 CLOUDY
1943 49 34 0.0 PARTLY CLOUDY
1944 71 36 0.0 SUNNY
1945 60 36 .07 CLOUDY
1946 72 44 .23 CLOUDY
1947 53 38 .03 MOSTLY CLOUDY
1948 64 33 TR CLOUDY
1949 55 33 0.48 CLOUDY
1950 70 40 0.0 PARTLY CLOUDY
1951 57 37 0.0 CLOUDY
1952 61 45 0.0 CLOUDY
1953 67 41 0.0 SUNNY
1954 46 33 .04/TR CLOUDY
1955 55 37 TR CLOUDY
1956 69 54 .06 CLOUDY
1957 61 38 0.0 PARTLY CLOUDY
1958 59 42 0.0 MOSTLY CLOUDY
1959
1960 59 41 .20 CLOUDY
1961 54 48 0.0 CLOUDY
1962 49 39 TR CLOUDY
1963 60 40 .10 CLOUDY
1964 52 31 0.0 SUNNY
1965 64 40 TR THUNDERSTORM, MOSTLY CLOUDY
1966 57 34 0.0 CLOUDY
1967 61 37 TR CLOUDY
1968 50 33 0.0 MOSTLY CLOUDY
1969 61 26 0.0 PARTLY SUNNY
1970 54 47 .68 HAIL, CLOUDY
1971 80 47 0.0 FOG, CLOUDY
1972 41 31 0.0 CLOUDY
1973 58 38 .13 FOG, MOSTLY CLOUDY
1974 72 56 TR FOG, CLOUDY
1975 65 47 0.0 CLOUDY
1976 45 36 .69/TR CLOUDY
1977 61 30 0.0 MOSTLY SUNNY
1978 68 42 0.0 PARTLY SUNNY
1979 62 31 0.0 FOG, SUNNY
1980 56 43 0.0 PARTLY CLOUDY
1981 62 38 0.0 MOSTLY SUNNY
1982 64 46 .73 FOG, CLOUDY
1983 56 29 0.0 SUNNY
1984 58 39 TR MOSTLY CLOUDY
HALLOWEEN
YEAR HI LO PRECIP REMARKS
1985 59 34 0.0 MOSTLY SUNNY
1986 56 26 0.0 SUNNY
1987 54 34 0.0 FOG, PARTLY CLOUDY
1988 48 21 0.0 SUNNY
1989 73 50 0.15 CLOUDY
1990 57 34 0.0 FOG, MOSTLY SUNNY
1991 52 37 0.0 PARTLY CLOUDY
1992 41 28 0.0 MOSTLY CLOUDY
1993 38 33 0.90/2.6 CLOUDY
1994 63 50 0.71 SUNNY
1995 42 37 0.01 CLOUDY
1996 49 35 TR CLOUDY
1997 66 32 0.0 PARTLY CLOUDY
1998 53 29 0.0 MOSTLY SUNNY
1999 66 48 TR HAZE IN MORNING, THEN CLEARED OUT
2000 51 27 0.0 PARTLY SUNNY
2001 56 37 TR MOSTLY CLOUDY
2002 47 25 TR DRIZZLE IN AFTERNOON
2003 74 50 0.0 BROKEN CLOUDS
2004 58 47 TR OVERCAST CLOUDS
2005 64 44 0.0 OVERCAST CLOUDS
2006 68 48 TR OVERCAST CLOUDS
2007 68 39 0.0 BROKEN CLOUDS
2008 67 39 0.0 MOSTLY SUNNY
2009 60 46 0.11 LIGHT RAIN
2010 48 34 0.04/TR LIGHT RAIN, LIGHT SNOW
2011 51 31 0.0 OVERCAST CLOUDS